Is your website working right now? Continuously tests and monitors the status of your websites 24/7. Notifies you immediately if any problems occur..webALERT runs on your PC in the "background" from your System Tray, so it uses few resources and is completely unobtrusive. It notifies you immediately when any problem occurs and measures the time that your website is "down" or unresponsive so you'll know what is happening every minute of every day with your website.

Homepage: http://www.lonewolf-software.com/webALERT.htm